Cylinder printing press



Qct. 27, 1931. A. BUTTNER 1,829,436

CYLINDER PRINTING PRESS Filed March 8, 1928 2 Sheets-Sheet 1 ii: I a 1' A. BUTTNER Oct. 27, 1931.

CYLINDER PRINTING PRESS 2 Sheets-Sheet 2 Filed March 8, 1928 IL .IL W W Patented Get. 27, 1931 UNITED STATES PATENT OFFICE ARTUR B'fi'TTNER, OF HEIDELBERG, GERMAN'Y, ASSIGNOR TO SCHNELLIRESSENFABRIK AKTIENGESELLSCHAFT HEIDIELBERG, F HEIDELBERG, GERMANY, A CORPORATION OF GERMANY ,Application filed March 8, 1928, Serial No.

invention relates to cylinder printing presses in which the printing members travel horizontally in opposite directions.

Various constructional forms of printing presses, in which the reciprocating motion of the form carriage and of the impression cylinder which travels along over it horizontally at the same time in the opposite direction are known. In these known constructions the reciprocating motion-was producedby ec-' ing members and by toothed wheels. In such an arrangement the main function of the rack and pinion gear was to ide and support the considera 'le upwar ly and downwardly moved mass s. This arrangement of having the printing members arranged so as to move upwards and downwards vertically makes the printing press awkward to work the press out'of the vertical working plane, which results in a complicated and expensive construction.

The present invention has for its object to" provide in rapid printing presses, in which the printing members travel horizontally in opposite directions, a positive driving connection of the said printing members, so that even when the machine is running. at high speed accurate registration will be maintained. The invention consists more particularly in this that the horizontally reciprocated form carriage is connected by power transmitting members positively to the carrier for the impression cylinder, which is also horizontally guided, and so arranged that through the motion of the form carriage in one direction the impression cylinder carrier will be moved in the opposite direction.

This can be 'efiected by racks being fixed at 50 both sides of the form bed and of theprintand necessitates the rocking of some parts .of

CYLINDER PRINTING PRESS 260,089, and in Germany October 27, 1926.

ing cylinder carrier which are in continuous engagement with spur wheels journallcd in fixed bearings on the machine frame.

In the accompanying drawings a constructional example of the invention is shown. Fig. 1 being a partial side elevation of the machine, and

Fig. 2 a vertical section on line II of Fig. 1.

- To a crank a on the crank shaft a a conmeeting rod 7) is connected, the other end of which is linked by means of a bolt a to bearing blocks cl fixed .to the under side ofthe form bed 0 which carries the printing form 0 By this means the form bed 0 whichjstfi guided in well known manner in the machine frame 9 has a reciprocating motion imparted to it.' In both sides of the form bed '0 are fixed by means of screws 6 or the like the racks e and e respectively, the teeth of which are in accurate engagement with the spur wheels 7. The latter are journalled on the stub shafts f fixed to the machine frame g.

In the machine frame 9 thetwo side parts i with the bearings 2' of the impression cylinder is are slidably guided in guide-ways i These two side parts are connected together by the cylinder axle 10 which. is fixed in them and on which the impression cylinder 70 can rotate. To the side parts i are fixed by means of screws 72. or the like the racks h and [a respectively, which are also in continuous engagement with the spur wheels 7.

With the arrangement described, when the form bed c has a reciprocating motion imparted to it bythe connecting rod 6 the racks e and h and the intermediate spurwheel f will cause the printing cylinder support 11 withthe printing cylinder is to travel through the same distance and at the same velocity, but in the opposite direction. While the printing cylinder 7c is travelling over the form bed a from the position shown in Fig. 1, the printing cylinder will perform a revolution.

I claim In a printing press the combination of a machine frame, horizontally arranged guideways in said frame, a form bed reciprocating on said guide ways, means for moving said iorm bed and. a toothed rack fixed on either length side of said form bed, a horizontally arranged guide way on each length side of said machme frame, .two side parts carrying 5 the impression cylinder and sliding on an supported by the last said guide ways, an axle connectm' said two'side parts,'sa1d impression cylin er being turnable on said axle atoothede-rack firmly connected to each o said twoside parts, a fixed bearing provided on either lenfth side of themachme frame, and a toothe wheel-'journalled in each hearing, said toothed wheels beingarranged be tween and engaging the toothed racks on said form bed and impression cylinder side parts, substantially as and for the purpose set forth;

In testimony whereof I have aflixed my signature. ARTUR BUTTNER. 

